What do you call the guys that complain about non stock cars?

There are some of us who believe that someone needs to remind people what these cars looked like as they came from the factory and I'm one of those. BUT, I have no problem with those who want to modify their cars. I'm of the mind that it's your car, your money, do what you want with it, and I do appreciate the time you guys put into the car making it your own. The thing that bothers me is when a perfectly good and unusual car is cut up in ways that aren't easily reversed. If someone wants to do that kind of thing find a car that's gonna need a lot of work to begin with, or is missing a lot of stuff that needs replacement. I guess in the end it comes down to both sides having, or earning, the respect of what the other group likes to do with their cars.

Did they ask to be reminded? Are these cars for sale you're thinking of buying? Because those would be the only two instances where your commentary would be welcomed or in any way considered positive by the owner.